Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 953 (Div. 2)
45:26:25
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
greedy
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
182C
Optimal Sum
data structures
,
greedy
2000
x712
180D
Name
greedy
,
strings
1900
x716
178A3
Educational Game
greedy
1100
x1396
178A2
Educational Game
greedy
1000
x1583
176A
Trading Business
greedy
,
sortings
1200
x1421
175E
Power Defence
brute force
,
dp
,
geometry
,
greedy
2600
x261
175C
Geometry Horse
greedy
,
implementation
,
sortings
,
two pointers
1600
x1295
174C
Range Increments
data structures
,
greedy
1800
x1071
174B
File List
dp
,
greedy
,
implementation
1400
x2203
173D
Deputies
constructive algorithms
,
graphs
,
greedy
,
implementation
2500
x247
169B
Replacing Digits
greedy
1100
x3206
167D
Wizards and Roads
data structures
,
divide and conquer
,
graph matchings
,
graphs
,
greedy
3000
x192
166D
Shoe Store
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
2500
x347
166C
Median
greedy
,
math
,
sortings
1500
x6374
161B
Discounts
constructive algorithms
,
greedy
,
sortings
1700
x1926
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4703
160B
Unlucky Ticket
greedy
,
sortings
1100
x13660
160A
Twins
greedy
,
sortings
900
x112311
159E
Zebra Tower
*special problem
,
data structures
,
greedy
,
sortings
1700
x993
159B
Matchmaker
*special problem
,
greedy
,
sortings
1100
x3694
159A
Friends or Not
*special problem
,
greedy
,
implementation
1400
x2461
158B
Taxi
*special problem
,
greedy
,
implementation
1100
x83363
155B
Combination
greedy
,
sortings
1100
x10058
154A
Hometask
greedy
1600
x4004
149C
Division into Teams
greedy
,
math
,
sortings
1500
x5281
149A
Business trip
greedy
,
implementation
,
sortings
900
x38204
148C
Terse princess
constructive algorithms
,
greedy
1700
x3074
145A
Lucky Conversion
greedy
,
implementation
1200
x6979
144E
Competition
data structures
,
greedy
2200
x566
142B
Help General
constructive algorithms
,
greedy
,
implementation
1800
x2144
141C
Queue
constructive algorithms
,
greedy
,
sortings
1800
x2376
140D
New Year Contest
greedy
,
sortings
1800
x2197
140C
New Year Snowmen
binary search
,
data structures
,
greedy
1800
x4212
140B
New Year Cards
brute force
,
greedy
,
implementation
1800
x1525
138B
Digits Permutations
greedy
1900
x1011
137B
Permutation
greedy
1000
x13386
135C
Zero-One
constructive algorithms
,
games
,
greedy
1900
x1324
135A
Replacement
greedy
,
implementation
,
sortings
1300
x7465
134C
Swaps
constructive algorithms
,
graphs
,
greedy
2200
x461
132D
Constants in the language of Shakespeare
constructive algorithms
,
dp
,
greedy
2100
x607
126C
E-reader Display
constructive algorithms
,
greedy
2000
x712
125D
Two progressions
constructive algorithms
,
greedy
2200
x394
125C
Hobbits' Party
constructive algorithms
,
greedy
1600
x907
123C
Brackets
combinatorics
,
dp
,
greedy
2300
x590
120I
Luck is in Numbers
greedy
2200
x303
120F
Spiders
dp
,
greedy
,
trees
1400
x3522
118C
Fancy Number
brute force
,
greedy
,
sortings
,
strings
1900
x2532
116B
Little Pigs and Wolves
greedy
,
implementation
1100
x13489
115B
Lawnmower
greedy
,
sortings
1500
x2436
111A
Petya and Inequiations
greedy
1400
x4654
103C
Russian Roulette
constructive algorithms
,
greedy
1900
x939
103A
Testing Pants for Sadness
greedy
,
implementation
,
math
1100
x5887
101D
Castle
dp
,
greedy
,
probabilities
,
sortings
,
trees
2300
x672
101A
Homework
greedy
1200
x3721
100J
Interval Coloring
*special problem
,
greedy
,
math
2400
x61
95B
Lucky Numbers
dp
,
greedy
1800
x1182
93B
End of Exams
greedy
1900
x906
92B
Binary Number
greedy
1300
x4723
91D
Grocer's Problem
constructive algorithms
,
graphs
,
greedy
2600
x262
91A
Newspaper Headline
greedy
,
strings
1500
x3513
90A
Cableway
greedy
,
math
1000
x4541
89E
Fire and Ice
greedy
2900
x98
89A
Robbery
greedy
1800
x1457
86B
Tetris revisited
constructive algorithms
,
graph matchings
,
greedy
,
math
2200
x402
85B
Embassy Queue
data structures
,
greedy
1800
x959
83C
Track
graphs
,
greedy
,
shortest paths
2400
x405
81D
Polycarp's Picture Gallery
constructive algorithms
,
greedy
2100
x634
81C
Average Score
greedy
,
math
,
sortings
1700
x1635
79C
Beaver
data structures
,
dp
,
greedy
,
hashing
,
strings
,
two pointers
1800
x1734
79A
Bus Game
greedy
1200
x3988
77C
Beavermuncher-0xFF
dfs and similar
,
dp
,
dsu
,
greedy
,
trees
2100
x981
76D
Plus and xor
dp
,
greedy
,
math
1700
x2007
76B
Mice
greedy
,
two pointers
2100
x545
75D
Big Maximum Sum
data structures
,
dp
,
greedy
,
implementation
,
math
,
trees
2000
x1749
74B
Train
dp
,
games
,
greedy
1500
x1499
73D
FreeDiv
dfs and similar
,
graphs
,
greedy
2200
x618
73B
Need For Brake
binary search
,
greedy
,
sortings
2000
x492
73A
The Elder Trolls IV: Oblivon
greedy
,
math
1600
x1302
72F
Oil
*special problem
,
greedy
,
math
1900
x117
72A
Goshtasp, Vishtasp and Eidi
*special problem
,
greedy
,
math
1800
x182
70B
Text Messaging
expression parsing
,
greedy
,
strings
1600
x1725
69B
Bets
greedy
,
implementation
1200
x3206
67B
Restoration of the Permutation
greedy
1800
x756
67A
Partial Teacher
dp
,
graphs
,
greedy
,
implementation
1800
x2067
65B
Harry Potter and the History of Magic
brute force
,
greedy
,
implementation
1700
x1323
64D
Presents
*special problem
,
greedy
1800
x283
64C
Table
*special problem
,
greedy
,
implementation
,
math
1600
x333
62A
A Student's Dream
greedy
,
math
1300
x3389
61D
Eternal Victory
dfs and similar
,
graphs
,
greedy
,
shortest paths
,
trees
1800
x6298
59D
Team Arrangement
constructive algorithms
,
greedy
,
implementation
2000
x607
58D
Calendar
greedy
,
strings
2000
x715
58B
Coins
greedy
1300
x11901
58A
Chat room
greedy
,
strings
1000
x123901
57A
Square Earth?
dfs and similar
,
greedy
,
implementation
1300
x2824
51C
Three Base Stations
binary search
,
greedy
1800
x1831
50A
Domino piling
greedy
,
math
800
x232352
48F
Snow sellers
greedy
,
sortings
2800
x138
48D
Permutations
greedy
1500
x2422
45I
TCMCF+++
greedy
1400
x2325
45F
Goats and Wolves
greedy
2500
x126
←
1
2
...
25
26
27
28
→
User lists
Name